Results 31 to 40 of about 885,801 (233)

The Mg/Fe ratio of silicate minerals in the meteoritic materials and in the circumstellar environment: A case study for the chondritic-like composition

open access: yesOpen Astronomy, 2021
Kaba meteorite as a reference material (one of a least metamorphosed and most primitive carbonaceous chondrites fell on Earth) was chosen for this study providing an adequate background for study of the protoplanetary disk or even the crystallization ...
Futó Péter   +9 more
doaj   +1 more source

Disc-planet, planet-planet, and star-planet interactions during planet formation

open access: yes, 2003
In this article we present results from three on-going projects related to the formation of protoplanets in protostellar discs. We present the results of simulations that model the interaction between embedded protoplanets and disc models undergoing MHD turbulence.
Nelson, Richard P.   +1 more
openaire   +2 more sources

Evolution of Giant Planets in Eccentric Disks [PDF]

open access: yes, 2006
We investigate the interaction between a giant planet and a viscous circumstellar disk by means of high-resolution, two-dimensional hydrodynamical simulations.
Gennaro D’Angelo   +9 more
core   +4 more sources

Magnetic field of planets, satellites and asteroids

open access: yesВісник Астрономічної школи, 2012
Origin of magnetic field of the solar system bodies, features and structure of magnetic field of planets of terrestrial type, giant planets, Moon, galilean satellites and asteroids are considered.
A. P. Vidmachenko
doaj   +1 more source

Planet of the apes [PDF]

open access: yesCurrent Biology, 2005
What makes us humans so special? Our language, our genes, our culture, our cognitive skills? At the Max-Planck-Institute for Evolutionary Anthropology in Leipzig, psychologists, linguists and biologists tackle this old question in a truly multidisciplinary way. Their results have implications not just for our understanding of human evolution--they also
openaire   +2 more sources

Spatial-temporal change of the geomagnetic field: environmental aspect

open access: yesГеофизический журнал, 2020
The geomagnetic field, along with other environmental factors, is a necessary component of life on the Earth. Currently, there are relevant ecological standards for the values of constant and variable fields.
M.I. Orlyuk, A.A. Romenets
doaj   +1 more source

Stakeholder Capitalism: A Global Economy that Works for Progress, People and Planet (Klaus Schwab with Peter Vanham)

open access: yesDigital Policy Studies, 2022
Is there an alternative to the current shareholder capitalism model of economic development? The book Stakeholder Capitalism: A Global Economy that Works for Progress, People and Planet, authored by Klaus Schwab, the founder of the World Economic Forum (
O’Brien Kaaba
doaj   +1 more source

Dynamic Retrieval of Olive Tree Properties Using Bayesian Model and Sentinel-2 Images

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
The goal of this study is to provide a fine detection and monitoring of olive orchard trees over large areas to anticipate any damage. We developed an original method to assess the spatiotemporal dynamics of biophysical parameters in the olive orchards ...
Hana Abdelmoula   +3 more
doaj   +1 more source

Catching a planet: A tidal capture origin for the exomoon candidate Kepler 1625b I [PDF]

open access: yes, 2018
The (yet-to-be confirmed) discovery of a Neptune-sized moon around the ~3.2 Jupiter-mass planet in Kepler 1625 puts interesting constraints on the formation of the system.
Hamers, Adrian S.   +1 more
core   +3 more sources

Thermodynamycal evolution of the Earth and Mars with formation of ocean, free atmospheric oxygen and generation of life

open access: yesВісник Астрономічної школи, 2012
On the basis of geochemical analysis and cosmogonics data of thermical parameters of external geosphere and eruptive process generating planetary bodies of stellar nature in the Solar system (by V.A.Ambartsumyan and S.K.Vsehsvyatsky) were founded new ...
R. Ya. Belevtsev   +3 more
doaj   +1 more source

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